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A Note on the Analysis of Two-Coil Wireless Power Transfer Systems

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Abstract

The analysis of a two-coil wireless power transfer (WPT) system can be done in different forms including using two-port network representations. Here, we opt to use a transmission matrix-based model and revert to symbolic math analysis CAD tools to derive closed form expressions (without any simplifying assumptions) for the complex power supplied by the system with and without an input compensation capacitor. The important role played by this capacitor in minimizing the re-active power loss is demonstrated and numerical simulations using typical values from two WPT systems are provided.

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Authors and Affiliations

  1. Department of Electrical Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates

    Ahmed Elwakil

  2. Department of Electrical and Software Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada

    Ahmed Elwakil & Brent Maundy

  3. Department of Sustainable and Renewable Energy Engineering, University of Sharjah, Sharjah, 27272, United Arab Emirates

    Anis Allagui

  4. Department of Mechanical and Materials Engineering, Florida International University, Miami, FL, 33174, USA

    Anis Allagui

Authors
  1. Ahmed Elwakil
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  2. Brent Maundy
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  3. Anis Allagui
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Correspondence to Ahmed Elwakil.

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Elwakil, A., Maundy, B. & Allagui, A. A Note on the Analysis of Two-Coil Wireless Power Transfer Systems. Circuits Syst Signal Process 42, 1808–1817 (2023). https://doi.org/10.1007/s00034-022-02165-6

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  • DOI: https://doi.org/10.1007/s00034-022-02165-6

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